Is it normal to be worried about miscarriage at 5 week?

Codie
I am so scared I'm going to miscarry this baby.  this is pregnancy number 1 for me but I'm analysing everything, including every little twinge! I can't find any statistics on miscarriage in the first trimester, and what I do find contradicts everything I've read prior! If any of you ladies can offer any advice that would be great!! 
Thankyou!